When it comes to stuff like varnishing etc. I am very much in the 80/20 camp. If you can achieve 80% of the results in 20% of the time - party on!!!!!!.
In the lower photo the door was lovingly sanded and painted (not by me) with three coats of varnish. The panel on the left and in the top photo were sanded and painted with two coats of Cetol Light followed by two coats of Cetol Gloss. Spot the difference???